Subject:
|
Re: Ultrasonic proximity sensor
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Fri, 21 Nov 2003 07:21:50 GMT
|
Viewed:
|
2455 times
|
| |
|
|
Jim Choate wrote:
>
> - Every dog (and a lot of musicians) in the area is going to go crazy when
> that thing is turned on
Indeed. 24khz for audio is too low. It should be at least 40khz if it's
using sound.
(btw, what frequencies do bats use?)
>> Mark
|
|
Message has 2 Replies:
 | | Re: Ultrasonic proximity sensor
|
| (...) Many different ones, ranging from clearly audible to much more than 40kHz. Depends on what they're doing. -- -- Open Forge, LLC 24/365 Onsite Support for PCs, Networks, & Game Consoles 512-695-4126 (Austin, Tx.) help@open-forge.com (...) (23 years ago, 21-Nov-03, to lugnet.robotics)
| | | Re: Ultrasonic proximity sensor
|
| (...) Right. The word ultrasonic means "higher than sonic" or above the 40KHz top end of the audible range. These are sonic proximity sensors, FWIW. - Chris. (23 years ago, 21-Nov-03, to lugnet.robotics, FTX)
|
Message is in Reply To:
| | Re: Ultrasonic proximity sensor
|
| (...) The frequency at which air is best matched is about 40kHz, several things with this: - low resolution because of the low frequency - going to take more power to get a given range of detection than using a commercial grade unit (works at 40kHz) (...) (23 years ago, 20-Nov-03, to lugnet.robotics)
|
6 Messages in This Thread:
 
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
